What type of communication is it when parrots bob their head up and down?​

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?